/**
  * Returns the content alias given a valid content id.
  *
  * @param integer $id The content id to query
  * @return string The resulting content alias.  false if not found.
  */
 function GetPageAliasFromID($id)
 {
     $res = cms_content_cache::get_alias_from_id($id);
     if ($res !== FALSE) {
         return $res;
     }
     $gCms = cmsms();
     $db = $gCms->GetDb();
     if (!is_numeric($id) && strpos($id, '.') == TRUE && strpos($id, ',') == TRUE) {
         return $id;
     }
     $params = array($id);
     $query = "SELECT content_alias FROM " . cms_db_prefix() . "content WHERE content_id = ?";
     $row = $db->GetRow($query, $params);
     if (!$row) {
         return false;
     }
     return $row['content_alias'];
 }